Carthy



(No Model.)

0. McOARTHY & J. P. GUMMING.

COVERING FOR WALLS AND ROOPS, 8w. No. 274,354. Patented Mar.20,1883.

WITNESSES V INVENTBHS UNITED STATES PATENT Gr mes.

CHRISTOPHER MCCARTHY AND JAMES P. OUMMING, OF BOSTON, MASS, ASSIGNORS OF ONE-THIRD TO OSCAR E. DOOLITTLE, OF SAME PLACE.

COVERING FOR WALLS AND ROOF-S, 84.0.

SPECIFICATION forming part of Letters Patent No. 274,354, dated March .20, 1888.

Application filed September 6, 1882.

To all whom it may concern:

Be it known that we, CHRISTOPHER Mc- CARTHY and J AMES P. CUMMING, of Boston,

. of our improved covering. Fig. 3 is a section on line as w of Fig. 1. line 3] y of Fig. 1. Fig. 5 is a section on line 2 z of Fig. 1.

Our invention relates to an improvement on the covering for roofs, walls, 820., for which Letters Patent of the United States N 108,068 were granted to William Utley, October 4., 1870, and has for its object to render the jo int between the rabbeted sections of said covering stronger, and also to entirely avoid the liability of one section being forced up or out at the joints by frost or otherwise, so as to project beyond the level of the contiguous section or sections, whereby a perfectly smooth and level exterior surface is at all times insured; and our invention consists in providing each section, at the inner edges of its rabbets, with undercut grooves for the reception of tenons or lips formed at the outer edges of the rabbets of the contiguous sections, where- 7 ries of sections composing our improved covering, and formed of slate, marble, stone, porcelain, metal, terra cotta, or any other suitable material adapted for the purpose. These sections, which may be made of any desired thickness, are each of the form seen in Figs. 1 and 2, having a rabbet, b, on each of their four sides, so arranged that the rabbet-s on two opposite sides will be one on the upper and the Fig. 4 is a section on- (No model.)

other on the under side of the said section, the rabhets, which are out to half the thickness of the section, projecting from two sides on its top and from the two opposite sides on its bottom, so that when properl matched the rabbets of the upper side of one section will overlap the lower iabbets of the two adjoining sections, the construction thus far being the same as that described in the aforesaid patent of William Utley.

The feature which forms the subject of our invention will now be described.

' At the inner edge of each rabbei l) is formed an undercut groove, 0, into which snugly fits a corresponding lip or tenon, (1, formed at the outer edge of therabbet b of the adjoining section, each of the four rabbets of a section having a groove, 0, at its inner edge and a corresponding lip or tenon, d, at its outer edge, whereby when the sections are matched together, as'seen in Figs. 1, 3, and 4, they will be firmly looked and held on every side in such manner that it will be impossible for any one section to he raised or forced up or out independently of the others by the action of frost or otherwise, so as to project at the joint beyond the level of the adjoiningsections, and in this manner a perfectly smooth and level surface is insured at all times and under all conditionsan important advantage which is not secured with the construction described in the aforesaid patent of William Utley, and which renders our improved covering especially adapted for the fronts of buildings, walls, coilin gs, 85c.

The several sections A of the covering, are put together so as to break joints, as seen in Fig. 1, and they are preferably cemented in their place and to each other, bolts, screws, nails, or other suitable fastening devices being alsoemployed, if desired, in which case the heads of the bolts, screws, 85c, would be concealed from view by the overlapping portions of the sections. The outside sections would be made with only three of their sides provided with the rabbets and grooves above described, the remaining side being made plain or with a square edge.

The above described sectional covering, which is perfectly solid and entirely waterproof, may be applied to wooden or brick buildings, to iron or wooden .roofs, to the inner and outer walls of buildings, ceilings, floors, and generally to any surface which it may be desired to cover, and these sections may be painted or otherwise ornamented'for use for interior or exterior decoration, and will be found to form a covering stronger, more durable,.and better adapted for building purposes than any hitherto in use.

What we claim as our invention, and desire to secure by Letters Patent, is-

1. As an improved covering for the walls and roofs of buildings, floors, ceilings, &c., the rabbeted sections A, constructed and adapted to be overlapped and matched together to break joints, as shown, and having undercut grooves c at the inner edges of their rabbets b, and lips or tenons d at the outer edges there of, the grooves c of one section being for the reception of the lips or tenons d of the adjoining sections, whereby each section is prevented from being raised or forced up or out -at the joints independently of the adjoining sections, substantially as set forth.

2. As a new article of manufacture, a coverin g-section, A, rabbeted, as shown, and having undercut grooves c at the inner edges of its rabbets b, and lips or tenons d at the outer edges thereof, whereby a series of said sections are adapted to be overlapped and matched together in such manner as to pre vent one section from being raised or forced up or out atthejoints independently of the adjoining sections, substantially as described.

Witness our hands this 4th day of September, A. D. 1882.

CHRISTOPHER MCCARTHY. JAMES P. CUMMING. In presence of- P. E. TESOHEMACHER, W. J. CAMBRIDGE. 

